From: Chia-I Wu Date: Wed, 3 Sep 2025 19:21:33 +0000 (-0700) Subject: drm/panthor: validate group queue count X-Git-Tag: v6.17-rc6~13^2~1^2~1 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a00f2015acdbd8a4b3d2382eaeebe11db1925fad;p=thirdparty%2Fkernel%2Fstable.git drm/panthor: validate group queue count A panthor group can have at most MAX_CS_PER_CSG panthor queues. Fixes: 4bdca11507928 ("drm/panthor: Add the driver frontend block") Signed-off-by: Chia-I Wu Reviewed-by: Boris Brezillon # v1 Reviewed-by: Steven Price Signed-off-by: Steven Price Link: https://lore.kernel.org/r/20250903192133.288477-1-olvaffe@gmail.com --- diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/panthor/panthor_drv.c index 1116f2d2826ee..4d8e9b34702a7 100644 --- a/drivers/gpu/drm/panthor/panthor_drv.c +++ b/drivers/gpu/drm/panthor/panthor_drv.c @@ -1094,7 +1094,7 @@ static int panthor_ioctl_group_create(struct drm_device *ddev, void *data, struct drm_panthor_queue_create *queue_args; int ret; - if (!args->queues.count) + if (!args->queues.count || args->queues.count > MAX_CS_PER_CSG) return -EINVAL; ret = PANTHOR_UOBJ_GET_ARRAY(queue_args, &args->queues);